/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.table.runtime.operators.multipleinput.output;

import org.apache.flink.streaming.api.operators.Output;
import org.apache.flink.streaming.api.operators.StreamOperator;
import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
import org.apache.flink.table.data.RowData;

/**
 * Base {@link Output} that can be used to emit elements and other messages in {@link
 * MultipleInputStreamOperatorBase}.
 */
public abstract class OutputBase implements Output<StreamRecord<RowData>> {
    private final StreamOperator<?> operator;

    public OutputBase(StreamOperator<?> operator) {
        this.operator = operator;
    }

    @Override
    public void close() {
        try {
            operator.close();
        } catch (Exception e) {
            throw new ExceptionInMultipleInputOperatorException(e);
        }
    }
}
